share time: 2025-09-12 19:26:16
In an anonymous social experiment called 'Heartbeat Signal', five young men and women are trapped in a luxury villa, with smart bracelets monitoring their real-time attraction levels. When a cold female CEO and a gentle male doctor repeatedly trigger each other's heartbeat peaks without knowing each other's identity, a seemingly sweet couple hides someone manipulating the data behind the scenes. As truths emerge, intertwining affection and conspiracy, whose heartbeat is genuine? Who is drowning in lies?
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